<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
#div2 {
	background: #FF00000;
	border: 1px;
	margin: 10px;
	padding: 5px;
}
</style>
</head>

<body>
<div id="div1">
	<div id="div2">div2</div>
</div>
</body>

</html>